Granted Patent
Utility
US 6,701,291 · App. 09/824,076
Automatic speech recognition with psychoacoustically-based feature extraction, using easily-tunable single-shape filters along logarithmic-frequency axis
Inventors:
Qi Li, Olivier Siohan, Frank Kao-Ping Soong
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Apr 2, 2001
Inventors
Qi Li
Olivier Siohan
Frank Kao-Ping Soong
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.